Sunday night dread. Most working people experience the feeling at some point in their career, but it seems like teachers get hit harder than most. No matter how intent we are on using the weekend to relax and refresh, that ugly feeling of anxiety and apprehension creeps up and clobbers us over the head.  JM recently wrote into our WeAreTeachers HELPLINE group on Facebook with this tough question, “Anybody else have trouble with anxiety on Sunday nights? Feeling like you’re…